Signs of a faulty automatic transmission selector sensor:
Gear shift problems:
* Difficult or impossible to change gears.
* Gear shifts are jerky or slipping.
* The car may get stuck in a certain gear.
Incorrect display of the selected gear:
* The selected gear indicator on the instrument panel does not correspond to the actual gear selected.
* A gear may appear as “N” (neutral) even if it is not in it.
Starting the engine:
* The engine does not start even when the automatic transmission selector is in the “P” (park) position.
* The engine starts only in a certain selector position.
Other signs:
* The transmission light (usually “Check Engine” or “Transmission”) comes on.
* Vibrations or noises are felt when shifting gears.
* Transmission fluid leaks.
* Delay between gear changes.
Causes of malfunction:
* Damaged or worn sensor.
* Faulty electrical connections.
* Damage to wiring.
* Problems with the transmission control module (TCM).
Consequences of malfunction:
Incorrect operation of the automatic transmission selector sensor can lead to serious problems with the transmission, such as:
*Transmission damage.
* Transmission fluid leaks.
* Transmission overheating.
* Dangerous driving situations.